baedsley



(No Model.)

J. BARDSLBY. y DOOR SPRING AND CHECK.

No. 366,7101. Patented July 19', 1887. Zig! Mp6 B www Nien n. PETERS. Pmainhogmpher. wuhngmn, D. C.

'(No Model.)

J. B'ARDSLEY. DooRvsPRlNG AND CHEGK.'

No.l 366,711. A Patiented ply 19,1188?.`

e Ry! niv VENTR ATTORNEYS UNITED STATES PATENT OFFICE.,

JOSEPH BARDsLnY, or nnooiimn, Nnw vonn.

DOOR SPRING AND CHECK.

SPECIFICATION forming part of Ifetters Patent No. 366,711, dated July 19, 1887. Application filed Janilam li1 l8r-7. Serial No. QLIPP. (No model.)

To @ZZ whom' it may concern,.-

Bc it known that I, Josemi BAnDsmiv, a.

citizen ofthe United States, and a resident of Brooklyn., in the county of Kings and State 'of New York, have invented certain new and useful Improvements in Devices for Hanging .and Closing Doors, of which the following is 4a specification. v

The invention relates to improvements in devices for hanging and closingr doors; and it ,'eonsists in certain elements of construction, hereinafter describethand particularly pointed ,ont in the claims.

rlhc apparatus sought to be protected hereby is a further development and embodiment of the invention, with supplennjmtal features, described and claimed in Letters Iatent of the United States No. 329,000, issued to me on the 27th day ofOctObcr, 1355.

The invention is illustrated in the accompanying drawings,forming apart ofthis application, in which Figure 1 is a top view ofthe apparatus as set into the floor beneath and in line with the width of the door. lfig. 2 is a central vertical longitudinal section of same on th'e dotted line a b of lfig. l. with the addition of a. portion of the door. Fig. Sis ahorizontal longitudinal section ofthe saine on the dotted line c rl ofliig. i3, andliig. l is a vertiV cal transverse section on the dotted line cf of Fig. l. v

In the drawings, A. ldesignates the-lideer, of usual construction, liavingembedded vin its loweredgcthe bai-l, which is secured in place by screws, and is provided in its Outer end with the vert-ical square aperture (l to receive the upper end of the pivot l), forming a part of my invention. Jhe pivot l) is seated in v oneen'd ofthe casinfr E so as to be ca )able of s i l rotation therein, and is provided adjacent to that porti'on thereof which s immediately below the upper inner surface of the casing with the annular groove li, in which is placed the washer G, ofclastic material, saidwasher being preferably circular in cross` section. The pivot l) is circular in outline from said washer to a point at the base of its squared upper end, which is adapted to entre.' the aperturef() in the bar l; above,y mentioned, and upon one side of the pivo'j is provided the substantially heart-shaped cam H, which,

length ofthe casing ll, its hrozulestpart being in a transverse linethrough and forming shoulders, one on each side ofthe pivot l), as

illustratedinFig. I; of the drawings. Upon opposite sides of the pointof the cam are provided the corresponding depressions, I J.

The casing lil forms a part of my invention, and consists of a flat upper part and substantially scmicircnlarlower portion eontaining acircular bore, li, in which is placed the spring and piston, hereinafter described. The casing is intended to be embedded in the floor beneath the door,and is rigidlysecured in posi` tion by means ofscrews entering the apertures Ii, formed in the laterally-extending portions of the upper partofthe easing. The uppersurface of the casing ll isprovided with a vertical opening, M, andthe casing has an opening at each end, the foineigwheitthe invention is in when in its normal position, is in line with the use beinfr closed bv the disk N ttine over the pivot D, and being held iirmly in its seat against the metal washer ti by screws,I as sho'wn in lfig. I, the rubber washer (i being thereby compressed and made to serve effectuallyas a packing, while the said end Openings of the casing are threaded and adapted to be sealed by the sermv-plugs (l) l, respectively.

It is essential tha-t the casing be made liq uid-tight, since apart of my inventioninvolves the fillingI` of the interior of the casing with a liquid, which will preferably be glycerine,.and it is evident that the liquid will be unable to escape, by evaporation Or otherwise, while the apparatus is in use, owing to the plugs O I and the close-fitting disk N and washer (l. which I have provided for sealing the interior olltlie casing may be ren1oved,\vhen desired,to permit an inspection or the withdrawal of the interior operative misehanism.. At a suitable point in the boreof the casing E are formed the inwardly-projectinglugs or stops Q, and that portion ofthe easing beyond the bore K and surrouiuling the pivot l) is enlarged laterally on Opposite sides, in order to provide sufficient space for the cam II during the rota- .,toij of said pivot, as shownin l `igs.1,3, and 4.

ljhe,construction of the casing E above deA scribed is especially appropriate and desira- It is also evident that the means loo ble for the purposes of the invention, since it may yreadily permit the insertion or with drawal ofthe operative mechanism and liquid, may quickly be secured in position beneath the door, and isliquid-tight, this latter; con, sideratiou being of particular moment, since thereby the parts of the apparatus may be arwhich might otherwise arisefrom his not having a practical knowledge of the mechanism. The easing E is also of advantageous construction, owing tothe fact that it will occupy the minimum amount of space beneath the door and will not be liablel to collect dust or disfig ure the apartment in which it is used.

. \Vithin thccasingEisarrangedthepiston rod T, upon one end of which is secured the pistonhead S, snugly fitting the bore K and containing the apertures V, which are adapted to be opened and closed by the sliding valve-plate NV during the movement of the pistonrod, as hereinafter described. Upon the opposite end ot the piston-rod is secured or formed the yoke X, inelosing the heartshaped Cam Il, and consisting o`t` the cross head or bar Y and the upper and lower pairs ot' arms, f/ h, extending rearward therefrom along the upper and lower surfaces of the cam lf, as shown in Figs. 2, 3, andlt, thc rear ends of the upper fingers, 11, being connected with the lower fingers, Ii, by pins i', which serve as axles t'ortthe vertical rollers j lf, arranged immediately behind the side projecting portions ot' the cam lf, as in dieated more clearly in Fig'. 8. lheeross-bar Y of' the yoke X is provided on its side facing the cam 1I with the cent ral pointed elevation, D', aml on either side thereof' the concave sur faces 1"/ F', against which the said eam moves during the rotation of the pivot-,1).

f Upon the piston-rod Fadjaeent tothe erosshead Y, is the loose sleevem, one end of which forn'is a collar, ii, which is in contact with the stops above mentioned, and serves as a bearing for one cml ot' the coiled spring 1t, which incloses the pistoirrod and is held in a compressed condition between said collar and the piston-head S. rlhe sleeve m has a broad surface in contact with and serves as a guide for the piston-rod, and hence the collar n. will not lose its relation to the stops Qor become otherwise disarranged or impaired by any sudden action of the operative parts ot' the apparat us, each element of which is specially constructed with a view of durability in the most comprehensive sense of the word.

Vithin the easing l l is formed a passage, l, one end of which opens into the bore K. at its extreme outer end between the plug l and the piston-head, while the other end of the passage opens into the vertical aperture ir at a point between the pistonhead and collar n, as;

shown in Fig. 2, which aperturew is at its" lower end 1n communication with the interior of the bore K, as shown, while its upper end is closed by means ot' the screw-plug m, the

purpose of which, in addition` to sealing the', i

upper end of the aperture w, is to close to 'a greater or less extent, when and as desired, the passage f, thereby regulating the fiowof the liquid through the same, as hereinafter described. The head of the screw-plug :abeing f exposed at all times above the casing E, may f.

be readily turned by means of a screw-d river without disturbing the apparatus or disconnecting it from the door, and without any liability ot` the liquid escaping.

In addition to the passage t for conducting the liquid within the casing Earound the piston-head S, there is provided also the passage y, which is simply groovcd into the surface of 4 tho'metal of which the easing. is constructed,

asillustrated in Fig. 3, and whose outer end I is closed by the piston-head when the latter is in its normal position, as shown.

If desired, the casing l when iu use may be covered with a plate, s, (see Figs. 2 and 4,) of suitable material and finish, the same being secured to the easing by screws passing into t-he holes A provided for them.

l'n instances where the, surface intowhich the casing E is embedded is wood the screws hereinb'etbrc referred to, passing through the apertures L, will suilicicntly secure the same; but when the apparatus is to bc set into a marble floor, for instance, additional securing means may be appropriately provided, and in such eases I make use of the wedgeshaped blocks l1 l', held by screws beneath opposite sides of the upper part of the casing, as shown in Figs. l and 4, which blocks are wider at their lower than at their upper end and have their sides taper inward toward the casing, as denoted by dotted lines in Fig. l, and the purpose ot' which is to enable the 'easing heilig firmly held in place b vlead melted and poured around theI same and hardened, and at the same time not linterfere with the removal of the casing when necessary. v

\Vhen it is desired to remove the casing se- 'eured by lead, as above specified, it will only be necessary to free the screws attaching theblocks l' l' to the casing and litt the'latter from its bed, leaving the blocks therein.. q t'ar as this feature oftheinventioniu concern it must -bc understood that I do not confine myselfto blocks B which are wedge-shaped,

strictly speaking, but claim for this purpose any blocks having projections or depressions which may be rigidly held by `the lead aud at thc samotime be freed from the casing when pivot D is inserted into its opening M, and the yoke, collar a, spring, and piston-head (these elements having been previously put together) then introduced through the right-hand-end opening of'the bore K, after which the rollers j lc are inserted through the left-hand opening of the casingE into position between the arms g h, being there secured by the pins i, introduced through the opening M. The plugP, with its washers G G and cap seat th rough the into the casing through the left-hand end of opening of same, the easing being turned upon its right-hand end for this purpose, after which the plug O is applied, as shown in Figs. l and 2, the apparatusl bein'git-heuin condition to be embedded into the door, ready for counection with the door with which it, ;1nay be intended for use. The expansive force ot the spring R- is under the control of the manufacturer, and should be regulated accordingl to the size ot' the door and other circumstances.v

It willappear evident upon reference to Figs. 2 and Sthatthe compressed coiled spring R exerts a constant pressure against the piston-head in a direction away from the pivot D, and that said force controls in part the relation ofthe yoke X with the heart-shaped cam H, the side projecting portions of which in contact with the rollersjk operate as checks to prevent the yoke being moved from the cam and as su rfaces acti ng upon said rollers to force said yoke toward the pivot D against the compression ot the spring R during the opening of the door.

In the operation of the apparatus the d oor, being pushed open in either direction, will cause the pivot D to turn in itsvseat, and thus bring the eam lljagainst one of the rollersj It', forcing the san'1e,aud through it the piston-rod and piston, inward, or toward the pivot D, the liquid within the casing during this movement passing through the apertures Vin the pistonhead and tliroughthe passagest and y/ leading around said head, this being necessary iu view ot` the fact that the casing is about filled with the liquid and part of it must pass to the opposite side of the piston-head in order to permit the movement et' the latter.

The operationot' the valve-plate WV will be readily understood, the force ofr the liquid merely causing it to slide forward on the stem supporting it, thereby opening the apertures V. The movement above described ot'the piston-rod and piston-head, due to the opening ot the door, operates to compress the coiled1 spring lt between said head and collar m, the latter remaining stationary, thereby creating an increased t'oree therein which will operate to move the piston to its fermer position, and thus rotate the pivot l) back to its normal condition and close the door as soon asthe latter is l'ree'lrom the power which opened it. During the latter movement ot' the piston and piston-head to their initial condition the `liquid piston-rod carrying the Yand w aforesaid,

N, is then. lirmly secured in place and the liquid filled in front of said head will return to the opposite side of the head. through the passages t the valvefplate W dur/ closing against the apertures V. Owing to the relative positions of the passages t and y, the piston-head will close the latter before it has fully attained its normal position, the passage tremaining open, the purpose ot' this arrangement being to ailow the liquid to tlow'more freely during the time the door is making' the iirst part of its movement and checking said flow during the latter part of said movement, in order that the door may not closeviolently. If at any time it should he desired to have the liquid flow more freely or less freely through the passage t, this result maybe accomplished by merely adjusting the screw-plug to cover more or less of the said passage. The form of cam H and its position in the yokeX is such that the door may be opened with equal facility in either direction, and in either event the spring, piston-rod, and piston operate in the same manner. The sleeve m, bcihgin coartact with the rigid stops Q, is prevented from losingits position and renders itimpossible for the Spring to be acted upon in any other manner than its direct compression and expan sion. During the rotation ot' the pivot l) in eitherdirection the point of the heart-shaped cam Il moves over one ot" the concave'surfaces E E oi' the crossbar Y, one of the side projecting portions otsaid cam being brought against one or the other of the rollers 7' L without undue friction, and creating thereby av positive movement of the piston and pis toured toward the pivot D. The construction of the yoke X and cam IL are matters of great import-ance, since thereby I am eni ahled to produce an apparatus which will not be liable tolbecome deranged or broken, and which will operate positively and smoothly without noise or jarring. During the rotation el" the pivot D' the ing parts ol'thc cum l[ closely follow their contaetsuri'aces smoothly, positively, and without obstruction, and prevent any sudden or irreuular action in the spring lt. The pas sages t and y for the liquid are also of great importance, since thereby the force with which the door is closed may be regulated at will, according to its size and the circumstances attending its use, and said door when closing may be caused to stop at its closing-point without passing the center, il' it be a doubleacting door, and without bang-ing7 if it be a single-acting door. ,1'

In instances where it may not be of moment to regulate the force with whicirthc doorl shall close it will not be essential to employ aliquid within the casing lll, and the passages t y and apertures may be dispensed with. Insuch instances, also, the easing need not be made liquid-tight. i

What l` claim as new, and desire to secure by Letters lalcnt, is

ing this movement point and side project-` IZO l. In apparatus for hanging and clesing 4doors, the piston, piston-rod, spring,and yoke,

and rear ends to engage the adjacent por-l tions of the said yoke during the operation of the apparatus, the said cross-bar affording a contact-surface for the frontend or point of the cam, sulrstaniially as and for the purposes set forth.

2. In apparatus for hanging and closing doors,theliquid-tight inelosingcasing, conlbined with the actuating-pivot seated in the casing and being in communication with the door, the piston, pistou-rod, spring, stop for the spring, the passage 1, formed in the casing and extending from one side of the pistonhead to the other, the vertical aperture w, also formed ih the easing and being in communication with the passage and the adjusting. plug .'r, arranged in the aperture w and adapted to be adjusted from the outside of the casing, substantially as and for the 'purposes set forth.

3. In apparatus for hanging and closing doors, the liquidtight iuelosing-casing E, composed of the lower part or body having the bore K and the upper flat part, and provided with the cap N and threaded plugs O I to close correspondnglyshaped openings therein, combined With the piston, piston-rod, spring, stop, yoke, actuating-pivot in coinninnication with the door, and the cam car- -vided with the passages lettered vt y, respectively, of such respective lengt-l1 that one may 45 be closed by the pistonlhcad 'before reaching.

its, normal position, while the other remains open, substantially as set forth. v

5. In apparatus for hanging and closingv doors, the easinginclosing theoperativemeeh- 5o anism and having a ilat upper surface with projecting flanges, combined with anchorblocks B B', substantially 'as and for the purposes described.

6. In apparatus for hanging and closing 5 5 doors, the casing inclosing the operative mechanism and having a'at upper s u'rfaee with projecting flanges suitably apertured for the reception of screws and provided with openings for the introduction of molten lead, combined with the covering-plate secured to and concealing said easing, substantially. as and for the purposes set forth. l

'Signed at New York, in the county of New York and State of New York, this llthfday 65` of January, A. D. 1887.' i

.y JOSEPH BARDSLEY.. XVitnesses: Crus. C. GILL,

W. A. C. MATTHIE. 

